The trouble with the previous approach of storing several settings in a
single data tiddler was that it made it hard to introduce new settings.
Users who already have a custom copy of the settings/metrics tiddler
wouldn’t get the default settings. The new approach uses individual
tiddlers for each setting.
This commit also introduces a new theme tweak for the cutoff width for
switching between responsive views.
A bunch of little changes that together enable external image support.
Try:
```
tiddlywiki editions/tw5.com --verbose --build externalimages
```
Then open `externalimages.html`, look for the images in the more/types
tab of the sidebar, open them and verify that they are set with an
external SRC attribute, not a data URI.
Now we respond dynamically to changes in the location hash in the URL
bar. It means that you can do links in HTML as `<a
href=“#HelloThere”>go</a>` and in Markdown as `[example
link](#HelloThere).`
We still need to make startup.js more modular
At this point we respect any permalink at startup, but we don’t yet
dynamically update the permalink, nor do we respond to ongoing
permalink changes.
The permalink separator being `%00` seems like it might be a bit
controversial. It buys us not having to wrap tiddler titles in double
square brackets if they contain spaces.
Another thing is that this scheme doesn’t support tiddler filters; the
plan is to support them like this:
http://tiddlywiki.com/#!Target%00%00[tag[task]sort[created]]
By rearranging the `[all[]]` operator we are able to ensure that shadow
tiddlers get processed before ordinary tiddlers. This makes it easier
to create custom stylesheets that override the core.
We re-use some of the existing syncer mechanism. It was already keeping
track of changes to tiddlers in the store when working with a tiddler
syncadaptor. Now it also tracks changes when there is no syncadaptor,
allowing us to provide a warning if there are unsaved changes.
